Home / 7,840.96-10,819.64-4,653.12

Finding the Fourth Proportional to 7,840.96, 10,819.64 and 4,653.12

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Solution

The fourth proportional to 7,840.96, 10,819.64 and 4,653.12 is: 6,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.96 : 10,819.64 = 4,653.12 : x
  2. Step 2: Convert to fraction form
    7,840.96/10,819.64 = 4,653.12/x
  3. Step 3: Cross multiply
    7,840.96x = 10,819.64 × 4,653.12
  4. Step 4: Simplify right side
    7,840.96x = 50,345,083.28
  5. Step 5: Solve for x
    x = 50,345,083.28/7,840.96
  6. Step 6: Final answer
    x = 6,420.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.